Display screen or portion thereof with graphical user interface



FIG. 1 is a front view according to a first embodiment of our design for a display screen or portion thereof with graphical user interface; and,

FIG. 2 is a front view according to a second embodiment of our design.

The shading illustrates a contrast in appearance.

The outermost rounded rectangles in broken lines showing an electronic device illustrate environmental subject matter. The broken line showing a display screen, and all other broken lines showing portions of the graphical user interface illustrate portions of the article. None of the aforementioned broken line subject matter forms part of the claimed design. 

CLAIM The ornamental design for a display screen or portion thereof with graphical user interface, as shown and described. 